Ralf, thanks for the info & inspiration. Sure you don't actually work at a fertility clinic?!
I've just cleared away 2 1/2 years of junk and crud from my veranda and now have open space out there, as well as five empty 10-gallon tanks that are available for "cooling" the good breeding prospects among my newts this winter. A few more questions:
* do they typically winter in the water? (I've seen them thus here in Japan)
* it is OK for the water to get as cold as it gets so long as it doesn't ice over (again, I've seen them in bodies of water in snowy areas of Japan in the dead of winter)
* would it be OK to keep several males in one tank and several females in the other, or might this somehow dampen their enthusiasm, divert their focus, whatever
(perhaps you could at least tell me how this works with fish)
* what is the minimum temperature at which the male would typically show breeding signs and the female develop eggs?
No, I won't feel too sorry for them, esp. as I've experienced the winter blues myself, only to have romantic prospects pick up in the spring